Carving-machine.



M. F. TUNES.

CARVING MACHINE.

APPLICATION FILED JUNE 7. 1910.

s fh Patented Sept. 16, 1913.

4 SHEETS-SHEET 1.

I/wfzoyf @a/weZ'rea'zzz 210 j@ )Wn/d d o @QQ M. F. TUNES.

CARVING MACHINE.

APPLIUATION FILED JUNE?. 1910. 1,073,547. Patented sept. 16,1913.

@o 4 SHBETSSHBBT 2.

M. E'. TUNES.

GARVING MACHINE.

APPLICATION FILED JUNE '1, 1910.

1,073,547. Patented Sept. 16, 1913` 4 SHEETS-SHEET 3.

M. F. TUNES.

CARVING MACHINE.

APPLIOATION FILED mmf/,11910.

1,073,547, Patented Sept. 16, 1913 4 SHEETS-SHEET 4.

Waff/y- E 6% ccLuMmA PLANonnAPM co.. wAsmNuToN, D. c.

ranrnnr onnren MANUEL FERREIRA TUNES, OF RIO DE JANEIRO, BRAZIL.

CARVING-MACHINE.

Specification of Letters Patent.

Patented Sept. 16, 1.913.

Application filed June 7, 1910. Serial No. 565,533.

To all whom if may concern Be it known that I, l\/f.\i\1onrJ Fnnnnnza TUNES, a subject of the King of Portugal, residing at Rio de Janeiro, Brazil, have invented certain new and useful Improvements in Carving-Machines, of which the following is a specification.

rIhe invention has for its object the production of a carving machine for reproducing in any material (principally in Wood) ornaments, moldings, carvings, etc., after a chosen model, (which, however, as well as the block intended to be carved, is fixed in the machine), this being effected by means of a carving tool following upon the block all the movements of a guide or tracer carrier, moved about by the operator upon the model.. The machine is arranged in such a manner as to exactly reproduce the model or to enlarge or reduce the same in its gcncral dimensions, or only in its reliefs and in its depressions, or to transform, in the reproduction, the reliefs of the model into de pressions and vice Versa. rfhe machine can, moreover, reproduce the model iu any predetermined distorted form, permitting the reproduction in the form of caricature of any figure or bust, for example, having a regular form.

The annexed drawings represent, by way of example, a machine embodying my invention.

Figure 1 is a front elevation of the entire machine. Fig. 2 is an elevation of the same, viewed from the side where the reproducing tool works; the carriage and the table which it carries being represented in half section along the line R-S of Fig. 3. Fig. 3 is a plan View of Fig. 1. Fig. 4 is a section along the line -m of Fig. 1. Fig. 5 is a horizontal section of the carriage along the line jz/-g/ of Fig. 1. Fig. G is a detail of the mechanism for transmitting the movement of one of the gratings to the other. Fig. 7 is a detail of a modification of the arrangement shown in Fig. 6. Fig. 8 shows in side elevation one of the two auxiliary rotary supports intended to carry the model to be reproduced and the block to be worked, respectively. Fig. 8a is a View similar to Fig. S, showing the table and the support in inclined position. Fig. 9 is a plan of Fig. 8. Fig. 10 is a section along the line owe-.e (Fig. 9). Fig. 11 shows a pair of stocks supporting a model carved upon all its faces. Fig. 12 is an end view of Fin'. 11.

A is the base of the machine comprising a column 1 furnished with an arm 2 having a flanged collar 2', which cooperates with the column to sustain a fixed shaft 3, of which the foot is fastened in the column, said shaft is preferably arranged in vertical position, as shown. The column is fastened at its base t upon two parallel horizontal sleepers 5, fixed to the ground. Upon the shaft 3 are pivotally mounted: a frame or chassis 1?, a two-armed lever C and a balanced bracket l), supporting an intermediate, transmission mechanism (Z.

rlhe frame or chassis B, which is in the form of an oblong rectangle, comprises two horizontal sides 7 and 8, connected by vertical sides S) and 10 and by intermediate crossties 1 1. '.lhe frame is supported on its lower side upon the summit of the column 1, by means of two collars 12 and 1Q', provided with interposed ball bearings 13. At the opposite ends of the sides 7 and S are mounted two vertical carriages b and L', movable longitudinally and guided and supported by bearing brackets 14 and 15, provided with ball bearings 1G. The carriages Y) and b, respectively, carry a vertical shaft 17 and a vertical tracer' carrier 18 movable vertically in bearing brackets 19 and 2O attached to the respective carriages. 'lhe shaft 17 is arranged in such a manner as to move and turn in its brackets and carries at its lower extremity a socket 21, in which is fixed a top-shaped, ribbed metal cutter.` 22, of appropriate form and dimensions for the work to be executed. The carrier 1S carries a socket 9A, in which is fixed a guide tool or tracer Q5, of which the extremity, which is intended to follow the surface of the model, has the exact form of? the body described by the cutting tool 22, or its ribs, during its revolutimi. The shaft 17 and carrier 1S are arranged upon the carriages l) and 7)', and the latter are, in their turn, supported and guided by their brackets in such a manner that said shaft and carrier constantly remain in the same vertical plane as the axis of the fixed shaft The shaft 17 and carrier 18 are each, by the intcrposition of twin cranks 32, suspended from a lever 30, pivoted at 31 upon the corresponding carriage. The cranks of carrier 18 are pivoted directly to the head thereof. Those of shaft 17 are pivoted upon a suspension socket 33 carrying a removable flange Bet, which is fixed upon said socket and is composed of two parts, the edges of which are adjustable in a groove 35 formed in said shaft. Each lever 30 carries a counter-weight 36, which may be adjusted thereon.

Above the upper face of the side 7 of the frame or chassis B, extend, on both sides of the central shaft 8, two gratings E and E corresponding each to one of the carriages,

and arranged in such a manner as to maintain the levers 30 in constant connection. Each grating is formed of two guide shafts 40 and 41, supported in superposed parallel relation at their ends by cross bars 42 and 48, furnished with trunnions 44 and 45 which oscillate upon the supports 46 and 47 arranged upon the frame B and fixed thereto. For each grating, the axes of the trunnions 44 and 45 coincide with the aXis of oscillation at 31 of the lever 30 and are parallel to the direction of movement of the carriages. Each grating is connected to the lever pivoted upon the corresponding carriage by means of two pairs of grooved rollers 50-50 and 51-51 adapted to travel along guide shafts 40 and 41, which they embrace closely.

The rollers 50-50 are supported upon the upper face of the lever 30, and the rollers 51-51 upon the lower face thereof by means of angle-pieces 52, each carrying an aXle for its roller. The angle-pieces are Xed upon the levers 30 by means of-bolts which pass th 1ough oval openings Vin the levers, thus rendering it possible to take up the play which is produced between the rollers and the guide shafts upon which they travel. The rollers are arranged upon. levers 80 in such a manner that the shafts 40 and 41 occupy a vertical plane when the levers are in horizontal position.

he two gratings are connected by means of toothed sectors G0 and G1 which are fixed iminovably upon the trunnions 45. rFliese sectors are in gear with one another and are keyed upon the respective trunnions in such a manner that, when one grating is in vertical position, the other is equally vertical. The sectors may be both of the same radius, as represented in full lines in Fig. 6, or they may have different radii, as indicated by the dot-and-dash line arcs, according as the shaft 17 and carrier 18 are to be moved through equal or unequal distances to reproduce, in the rst case, the projections and the depressions, just as they are found on the model and to increase or diminish, in the second case, the height of the projections and the depth of the depressions. v

Fig. 7 shows a modilication of the arrangements for transmission of movement from one grating to another, in which the two sectors 00 and 61', mounted upon the trunnions 45, mesh with an intermediate sector o. By means of this arrangement, the

shaft 17 and carrier 18 move vertically in means of fianged collars 94 and 95.

opposite directions and depressions of the model are produced,respectively, upon the executed work, as depressions and projections. lVith this arrangement, it is possible to modify the proportions of the depressions and reliefs of the reproductions, relative to those of the model, by altering t-he radii of the sectors 60 and 61, as is indicated in dot-and-dash lines, for the sector 6.0.

rifhe carriages and o are connected lby means of rods 7 2 and 7 3 to the two arms'70 and 71 of lever C, said arms being connected to the shafts 17 and carrier 18 of the respcc- Y tive carriages. rl"hese rods are adjustable in f length and are furnished at each extremity with a collar. @ne of the collars of the rod 72 forms a ring upon the rotary shaft 17. The other collar is located between the ears of a slide 7 6, where it is pivoted upon the axle 77.y The collars of the rod 73 are pivoted tightly upon the carrier 18 and upon the axle 77 of a slide 7o" similar to the slide 76.

rllhe slides may be readily set at'any point,Y

respective arm, in desired position accord-` ing to the requirements of the reproduction. The faces of the arms which receive the slides are so arranged that whatever be the position of the slides, their axles 77 and 77 lie in the saine vertical plane as the axis of the liXed shaft 8.

The shaft 17, is driven from a pulley 90 keyed thereto in the usual manner and held between two brackets 19, the keying of said pulley permitting longitudinal movementof said shaft through the bore thereof, as will be understood. rlChe pulley 90 is controlled by the pulley 92 of the intermediate transmission mechanism cl, of which the shaft 98 is carried by the arms 94 and 95 of the bracket D, pivoted upon the shaft 3 by rlhe lower collar 94 is supported upon the center of the lever C, by a pair of steel collars 97, having interposed roller bearings. y

From the flanged collar 95 projects an arm 96, furnished with a counterweight 98,V capable of being moved along this arm. I

Upon the shaft 3 is loosely mounted a double pulley, of which the lower member` 100 receives its movement from a motor or other approved source of power and transmits it, by way of the upper member 101, to the pulley 102 keyed upon the shaft 98,

as well as tothe pulley 92, which controls the pulley 90 on shaft 17. Belt connections between the various pulleys are employed, but illustration thereof is omitted for the sake of clearness.

The shaft 98 is held in position, relatively` to the shaft 17, by means of two counterpart rods 105,` adjustable in length, the

construction of which rods is the same as that of the rods 72 and 73. r1`hese rods terminate in collars adjustable, respectively, upon the shafts 17 and 93.

For each carriage Z) and o, there is provided a table 110 mounted upon a carriage I" having 'tour grooved rollers 111 adapted to closely engage and to travel on horizontal rails 112 tiXed upon the longittulinal sleepers 5. rJl`he table 110 is pivoted at 1153 upon a support 1111, the legs 115 of which are, for the purpose of raising and loweringl the table, arranged in such manner as to slide vertically in the guides 11G, 'formed upon the sides 117 ot' the carriage F. To this end, these legs carry the box nuts 118 'for the vertical screws 119 supported upon sides 117. These screws are controlled by a hand wheel 120, in connection with screws 119 through the intermediary oi the shafts 121 and 122 and of the bevel gear wheels 123:3 and 123. A graduated segment 125, fixed to the table 110, permits the latter to be readily adjusted to any desired inclination and to be held in adjusted position by a thumb screw 126,

The position of each carriage can be regulated upon the rails 112 and held so by means of a threaded rod 127 provided with a hand wheel 128, the rod being carried by the carriage and having its thread engaged in a tixed nut 129.

The model m and the block n intended for the reproduction oi' the model, are supported upon the tables 110, which occupy a horizontal position if the model is a basrelief, without undercutting, depressions, etc., as shown in Fig. 1. In the contrary ease, the model and the block to be carved are tixed upon their respective tables by means ot a rotary circular support 1I, having a pivot 131, which rests in a central ori tice ot the table. The support, which may conveniently be adjusted on the table, .is fixed by means of hooked swiveled bolts 1530 engaging in grooves 181 of the table, as shown in Figs. 8 to 10.

Fig. 8 represents the table as inclined with the support I1 carrying a model in such manner that the guide tool or tracer may be introduced in the undercut portions and the depressions which are to be reproduced upon the block worked upon.

1When there is a figure carved in high reliet upon all oit its faces, as shown in Fig. 11, the model and the block to be worked upon are placed between the stocks 135 and 136. Upon each table, there is fixed a pair of these stocks. Each pair comprises a stock 135, with a pointed shaft 137, and a stock 15:36 with a hooked shatt 139, the latter shat't being furnished with a disk 140 lixed thereupon and carrying in a circular groove, a clamping bolt 1112. The disk is provided with division marks 143 corresponding to those of an adjusting line 1111i, marked upon an ear 14:5, such arrangement permitting with the aid oil' the bolt 1412, the adjustment et the disk and its shatt in such manner thatl the model and the block to be worked upon occupy detinite angular positions in relation to one another upon the pairs et stocks.

From the foregoing, it will be seen that the arrangen'lent ot the working` parts of the machine and their associated connections is such as to .insure a synchronous movement both oi the two carriages o and and ot the shat't 17 and arricr 1S mounted in the same, which sha'tt will be termed in the appended claims the working shaft, as opposed to the supporting` shaft 3 and the driving shaft 93. .lt will also be seen that the working shaft and carrier are ar ranged for eiulwise niovement in the same or opposite directions, according as two or three intermcshingr gear sectors are employed, the relative lengths of the radii oit said sectors controlling the extent ot' such movements. 1n addition to their endwise movements, said working shatt and said carrier are arranged 'for bodily movement with the swinging 'trame or chassis l, and also for independent movement longitudinally of said frame or chassis toward or from each other, such indepcinlcnt movement being due to the synchronous movement of the two carriages. Finally, by reason oit' the :nljustahle connections between the carriages, and the two arms ot lever C, the extent ot the movements oit the former with respect to each other may be varied at will, so that the proportions of thc model may be 'followed either exactly or upon an enlarged or decreased scale upon the copy, or the latter may be reprodluzcd in the form o1 a caricature oit the model wholly or in part only. As regards the two supporting tables 110, it will be seen that they may be moved toward or lfrom each other and that both or either may be raised or lowered at will, rotated and set at any desired inclination, according as convenience or the character ot the particular model to be copied may dictate.

ll claim as iny invention:

1.111 a machine ot the character described, the combination, with a support; oit a trame mounted thereon and comprising a pair ot spaced parallel horizontal sides, and vertical sides connecting the ends of the first-named sides; a pair ot' movable carriages .located in said frame and arranged against opposite :faces thereof; cooperatingguiding and supporting devices secured to said carriages and said Iirstnamed traine sides; a working shattmounted in one carriage and provided with a tool; a tracer carrier mounted in the other carriage; and connections between said carriages for causing the same to move in unison.

2. In a machine of the character de- Y scribed, the combination, with a support; of

a frame rotatably mounted thereon and comprising a pair of spaced parallel horizontal sides, and vertical sides connecting the ends of the first-named sides; a pair of movable carriages located in said frame and arranged against opposite faces thereof; cooperating guiding and supporting devices secured to said carriages and said rstvnamed frame sides; a working shaft mounted in one carriage and provided with a tool; a tracer carrier mounted in the other carriage; and connections between said carriages for causing the same to move in unison.

3. In a machine of the character described, the combination, with a support; of a frame mounted thereon and comprising a pair of spaced parallel horizontal sides, and vertical sides connecting the ends of the same; a pair ofcarriages slidable in said frame and arranged against opposite faces thereof; a pair of brackets secured to said horizontal sides adjacent each end thereof; a pair of brackets secured to each carriage and associated with the iirst-named pair of brackets at the adjacent end of the frame; a working shaft `mounted in one carriage and provided with tool; a tracer carriage mounted in the other carriage; and connections between said carriages for causing the same to move in unison.

t. In a machine 'of the character described, the combination, with a frame and a support therefor; of a pair of carriages movable in the frame; a working shaft mounted in one carriage and provided with an operating tool; a tracer carrier mounted in the other carriage; a two-armed lever Vconnected to said support; and connections between the arms of said lever and said carriages for causing the latter to move in unison.

In a machine of the character described, the combination, with a frame and a support therefor; of a pair of rocking members mounted upon the frame; a working shaft and a tracer carrier suspended from said members for movement with the same and provided each with an operating tool; and inter-engaged gears connected to said members for synchronizing the movements thereof. j

6. In a machine of the character described, the combination, with a frame and aV support therefor; of a pair of rocking vgratings mounted upon the frame;.an endwises movable element connected with each Ygrating for movement with the sameg'and connections between said gratings for synchronizing the movements thereof.

7. In a machine of the character de-A pended from the other counterweighted member; and connections between said rocking members for synchronizing the movements thereof. Y

8..In a machine of the character described, the combination, with a rotatablymounted frame including spaced parallel side members, and end members connecting the ends of said side members; of a pair of carriages arranged against the opposite faces of the frame and connected at opposite ends with said side members for move ment longitudinally of said frame; a working shaft mounted in one carriage and provided with an operating tool; a tracer carrier mounted in the other carriage; and connections between said carriages for trans-V mit-ting the movement of one carriage to the other.

In testimony whereof I have hereunto set my hand in presence of two subscribing witnesses.

MNEL FERREIRA TUNES.

Wlitnesses D. LnUorrr, Y SYLLO TAvAnns DE Itnsmoz.V

Copies of this patent may be obtained for ve cents each, by addressing the Commissioner of Patents.

Washington, D. C. 

